Wire stretcher and splicer combined



J. VI. ROBERTS.

WIRE STBETCHER AND SPLICER COlVlBlNED,

`APPLICATION FlLED MAR.I5,1920.

Patented .1f uly 19, 1921.

INVEJVTOR.

ATTORNEY,

JAMES M. ROBERTS, OF MDR/EXW COUNTY, NEAR ST. JOSEPH, MISSOURI.

WIRE STRETCHER AND SPLICER'COMBINED.

assises,

Specification of Letters Patent. Pgmbnfgd J M15; 19, piggy .application inea March ie, 1920. serial No. 366,208.

To @ZZ whom it may concern.'

Bc it known that l, JAMns M. Roim'rs, a citizen oit the United States, residing in Andrew county, near St. Joseph, in the county of Buchanan and State oi' Missouri, have invented certain new and useful Improvements in Wire Stretchers and Splicers Combined, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in wire stretchers and splicers, combined; and the objects of my improvements are, first; to provide a simple, substantial and durable mechanism ot this class, thoroughly etlicient and be cheap in cost of manufacture, second; to so construct and arrange the parts of said mechanism, that a broken wire, either smooth or barbed, can be stretched and be held taut at any point while said wire is being spliced, and will leave the wire tightly stretched after said splice is made, third; to 4provide ready means whereby the mechanism can be easily and quickly attached to and detached from the wire being served thereby, fourth; to provide wire holding means whereby two ends of any wire, whether loose orstretched are held for splicing the same, which splicing can be done with the hands or with a pair of pliers.

l attain these objects by the mechanism illustrated in the accompanying drawings, in which: n

Figure 1 is a front view of the wire stretcher and splicer, combined, showing the parts in position Afor stretching a wire. Fig. 2 is a transverse section on the line 1 1, seen in Fig. 1, looking toward the left. Fig. 3 is an end view in detail of the rack guide and of one of the suspending hooks, `looking toward the lett. Fig. 4L is a section similar to Fig. 2, showing the vise in detail, holding the ond portions of a wire to bespliced.

Referring to Fig. 1 the rack 3 is slidably mounted'in the rack guide 2. Said rack is moved longitudinally, either toward the rightor lett, in said guide, by rotation of the wormfwheel "f1, the worm threads oi which are in engagement Swith the teeth ot said rack. Said worm wheel is secured on the-shaft 5, Vwhich is rotatably mounted in the lower ends of the standards 6, the` upper ends'ot which are formed integrally with. said rack guide. Y i

The crank is secured on one end ot said which shall be v shaft, whereby said shaft and the thereon se,

cured worm wheel are manually rotated.

The eccentrically mounted wire clamp 8 is provided with the handle9, by which said clampus loscillated on its pivot 10; which pivot is secured in the upper end portion of the standard 11. i y

The lower end or' the standard is rigidly` connected with the central portion of the top of the rack 3, above which said standard projects through a. slot formed longitudinally through the top of the rack guide 2, throughout its entire length.

The clamp seat 11 (see Fig. 2,) is formed on one side o'l said standard, on which seat the end portion of the splice wire` 12 is clamped by the clamp 8. l

1t will be'seen in Fig. 1, that said clamp hasi fine ratchet teeth formed on its face. which teeth are so inclined that 'the stretch-l ing of the splice wire 12, oscillates the clamp 8 clockwise, thereby tightening said clamp upon said Splice wire.

The fixed clamp 13 is provided with the handle 14, and is oscillatably mounted on the upper end portion of the standard 15, the lower end portion of whichis formedy integrally with the rack guidej2." The clamp 13 is the same in construction and operation as the previously described clamp 8eXcept that it is reversed in position, for holding the end portion 16 of the wire, against stress in the opposite direction.

The described rackguide and itsconnect-- ed parts are supported in position forl operation, by grasping the grip flanges 17, which4 are formed on the outer'portion of each oney of the standards 6, untilby rotation of the crank 7,.the'therewith connected parts have drawn tighttheend portions 12 and 1610i the wire. kAfter this the mechanism is sus-` pended from said portions of `wire by the hooks 18 and 19, whichv are respectively hooked thereon.

'Said lhooks are the same in construction and operation, as seen in Fig. 3, except thatf the hook 18 is detachably secured on one end of the rack guide 3, by thefset screw 18'," while the hook 19 is secured on the opposite end otsaid guide by welding or brazing.

The brackets 2O are formed with said rack guide on the front thereof.VV

. @ne end of each one of the links 21 is oscillatably connectedwith said brackets respectively. UT he ends of thebii'urcations of the biturcated vise body 22 'are respectively ends of said links, oscillation thereon.

connected with the free by the pivot bolt 23, for

The movable jaw 24 is n iountedbetween the bifurcations of the vise body 22, for slidable movement thereon. formed integrally with the free ends of said bifurcations. The cam 26 is oseillatably mounted between the ends of said bifurca-v tions, on the central portion of the pivot bolt 23, with the face ofthe cam against the adjacent surface of the vise jaw 24. rSaid cam is seen in Fig.y 1.

is; provided `with the handle 27, formed integrallytherewith.l

, The described vise is usedV for holding one end of the wire 12 and of the wire splice piece 12, clamped between the jaws 24 Vand 25, while makingthe splice 28, which splice Iny operation, with the parts in the position seen in Fig. 1, the operator of the'described wire stretcher and splicer, with one` hand grasps the grip iianges 17, which are at thev left of the worm; wheel 4, and withthe other hand rotates the crank 7, which, by the previously described worm and rack movement Y carries the clamp standard 11 and the therewithv connected clamp 8, from the position shown, to the center o f the mechanism.

,i and 16 tightly stretched, the. operator i'e` moves his handsfrom said grip flanges and crank, leaving .the 'machiner suspended on saidv tightened wire, hooks 18 and19. He then moves the previ- -oiisly describedvise fromthe position shown in Figs. 2l and 1, to the position shown-in Fig.v4, in which position the-cam handle 247` is thereby moved to afvertical positionl j y The. operator then; forces the caml handle d ,27ffrom its described vertical position to the splice wire 12 and of thefendportion 16 ofv position seen iniFigQ4, thereby movingthe jaw 24 towardvthejaw 25, tightly clamping saidwire portions` betweensaid jaws. He then V removes j the clamped portions 4 of said wire from the clamps 8 and 13,,an`d there after removes the; wire 12T and the end portion 16` of Vthe vwirc,froin thehooks 18 and 19 respectively, aft-er which' the parts of fthe." mechansiin gravitate from the posit-ion seen Y in Fig.i2, tothe position seen in Fig. 4, for providing space 4between said wire portions and the' racl guide 2, in wliichto perform the following described-operations.

Vthe wirfe,n aroiind the adjacent: portions of the. stretched wire, forming another` splice,

The iiX'ed -jaw 25 is by the suspending which is'the same in construction and operation as the splice 28. He then moves the cani handle 27fr'om the position shown in Fig. 4, to a vertical position, thereby loosening` the vise jaws 24 and 25 from said wire portions and removes the described vise therefrom, leaving the thus spliced wire tightly stretched. Y

The described twisting of the wire ends,

may be done with the hands of the operator,

or by the use of a pair of pliers not shown.

Saidl operator then carries the described mechanism to another broken wire, onto which he splices another splice piece of wire, previously described, after which he places the wire portionsin the clamps 8 and 13, and in the hooks 18 and 19, as lshown in Fig. 1, after which the previously described operations are repeated. l

Having fully described my invention, what I claim as new and desire to secure by Let-V ters Patent, is: g Y i -V 1. A rack guide vhaving' a slot formed through its top throughout the entire lengththereof andan opening formed through the central portion of its bottom; a'clamp standard the lower end portion of which is formed integrally .with -tlie central portioii of one side of said rack guide; aclainp seat formed on one side Yof said standard; a clamp memberv oscillatably mounted on the same side of said standard for clamping a wirebetween said `seat and said member by oscillation of the latter; arack mounltedhfor islidable movement Vin vsaid Arack ,f guide ;y a movable clamp standard the lower end of whichis secured on theupper surface of said rack and ,extends thereabove through. said `rack .guide slot, said'fmovahle standard 'being provided witha clamp seat and clamp member similar'tothe first'mentionedf clamp standardra pair of'standardsthe upperends of which are formed integrally with said rack j guide ;V

tatably mounted inthe loweriends `ofsaidl standards, a wormwheel secured on the cen- A a shaft the ends of which are rotral portion of said shaft the worm threads of which project` .from

saidV rack guide into. engagemeiit'with the pending hook .connected .with each end -of said rack. gi'iide. whereby the4 hereiiibefore claimed parts are suspendedfrom a stretched wire. .l Y iw, i .g

2.V In aV4 wire stretcherand'splicerycombined; a rackY guideya xed wire clamp rigidly connected with Vsaid rack guide forA detachably holding an end portion ofa Wire Y therein; a rack mounted `'Said operator` twiststhe free` end of the e said, wheel through the bottom `opening through the. bottom of for slidable' move-5 Vteetli of said rack.,- a crank secured onone'of the extremities of said shaft-'g1 and a: susment `in said guide g' sliding meansV wherebyv said rack isslid longitudinally in said guide g" a movable wire clamp securely'. connected with the central portionoffsaid `rack for clamping the opposite end portion of a wire therein; rack sliding means whereby said rack is longitudinally slid thereby moving said movable clamp and the therein clamped portion of a wire toward and past the rst mentioned wire clamp for tightly stretching said wire; a vise wherein the portions of said wire which are stretched between said wire clamps are tightly clamped for holding said parts of wire against longitudinal movement; vise suspending means between the free ends of which said vise is oscillatably suspended; and supporting means whereby the other ends of said suspending means are oscillatably connected with one side of said rack guide.

3. In a wire stretcher and splicer, combined; a rack guide; a rack mounted for slidable movement in said rack guide; wire holding means for detachably and separately holding the two ends of a broken wire; moving means whereby said wire holding means are moved toward and past each other thereby stretching said broken wire; a pair of brackets connected with one side of said rack guide at a point which is between and to one side of the thus moved wire holding means; a link for each one of said brackets one end of each one of said links being cfscillatably connected with its respective bracket; a pivot bolt through the other ends of said links; a bifurcated vise body; a vise jaw formed integrally with the Jfree ends of the bifurcations of said body, the other ends of said bifurcations being oscillatably mounted on said pivot bolt; a jaw mounted on said bifurcations for slidable movement therebetween; and a cam provided with a handle therefor, said cam being oscillatably mounted on the central portion of said pivot bolt between the pivoted ends of said bifurcations with its Jface against the adjacent surface of said slidably mounted jaw.

In testimony whereof l ailix my signature.

JAMES M. ROBERTS. 

